I've removed the last comment. Please use the attach button to attach files. Besides this, VBox 2.1.4 is very old and we don't intend to fix any bugs there anymore. Please check if the problem still exists in a current release, the latest is 3.0.8.

Frank - sorry, think you have this the wrong way round - I'm running 64bit Ubuntu 9.04 - with VirtualBox 3.0.10 installed. I have a /guest/ Windows XP Pro virtual PC that I'm trying to run SUPER(c) in which is not working.